There are temporary measures that will serve until you make a permanent repair, but ultimately any leaking pipe or fitting will need replacing.

Note: Major San Diego plumbing problems are best solved by calling a professional San Diego Plumber and left to those trained in Plumbing repair.

I have listed a Temporary fix that might get the water turned back on until the San Diego Plumber has arrived.

These are only San Diego Temporary Repairs for pipe leaks. Please contact a professional Plumber.

This is what you can do for your San Diego plumbing repair (Leaky Pipe)

1. If you a pinhole leak, first dry off the pipe & wrap it w/ several layers of plastic electrician's tape.( Make Sure It Is Dry Or It Will Not Work In San Diego) Wind it about 6" in either direction of the hole. Turn the water back on to complete what you need until the San Diego Plumber can arrive.
2. If you have a drip or pin hole leak at fittings, it is best to pack epoxy plumber's putty around the connection. You will need to go to the hardware store for this   This fast-setting compound makes a watertight patch.

2) An automotive hose clamp & a piece of rubber or sheet cork, available at most hardware & auto supply stores, also makes an effective leak stopper. Wrap the rubber or sheet cork around the pipe & tighten the clamp. If the leak seems to be more a drip than a squirt, & you can't find the location, the pipe simply may be sweating. Wrapping it w/ insulation will eliminate condensation. NOTE: The galvanized pipe commonly used homes built a generation ago has the tendency to rust from the inside out. Once a leak appears, you can expect others to follow. If the pipes at your house have begun to deteriorate, lay in a supply of pipe sleeves sized to fit your lines. These make semi-permanent repairs that will last for several years.

3) Drain-waste-vent (or DWV) lines are less prone to leak. Sometimes a cleanout plug will begin to ooze water. Warn everyone not to use any fixtures for a few minutes, then remove the plug & reseal it. For iron plugs, wrap the threads w/ pipe tape or coat them w/ joint compound. Plastic plugs twist free. Lubricate the o-ring w/ petroleum jelly & replace the plug.

4) Leaks at the joints of cast-iron DWV pipes are easy to repair. If it is the hub-and-spigot type, tamping down the soft lead it has been sealed w/ usually will eliminate the problem. Don't hit the pipe too hard; you could crack it. If your home's DWV lines are connected w/ no-hub clamping system, just tightening the clamp will probably stop the leak.

After you temporally fix your pipe leaks in San Diego you need to call a professional plumber like On time Experts In San Diego. Our referral program to a local plumber that is certified in his trade can help with your plumbing in San Diego. On Time Experts connects you to a low overhead plumber that is certified by the state not just a employee that works under a license from another plumber. Hire the best master plumber in San Diego, don't know who, well we do.